Clock



FIG. 1 is a top plan view of a clock showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a perspective view thereof as seen from the top left;

FIG. 8 is a perspective view thereof as viewed from the top right;

FIG. 9 is a perspective view thereof as viewed from the front left; and,

FIG. 10 is a perspective view thereof as viewed from the front right. 

The ornamental design for a clock, as shown and described. 